Telescope attachment for guns.



my s35,|o2.

Patented 0st. I7, i899.

E. N KRETSEHHR J. VLLEB.

I TELESPE ATTAGHQENT FR GUHS.

(Application led Aug. 15, 1999.)

(Na Model.)

2 Sheets-Sheet l.

No. s35,|o2. Y Patented oct. I7, |899. H. A. von KRETSCHMAR & J. voLLMER. TELESCUPE ATTACHMENT FUR GUNS.

(Application led Aug. 15. 1899.) (No Model.) 2 Sheets-Sheet 2,

&

I. s l 4.

WITNEssEs ATTORNEY Hans ALFRED voN KaETscHnAa AND JOHN voLLMEa, or EssEn, GERMANY, AssreNoas To FRIED. KRUPP, or SAME PLACE.

TstsscoP-s AT-racen ENT rou ,en Ns.

" SPECIFICATIONformiIig part OfLetteIB' Patent N0. 635,102, dated October 1f?, 1899. Application filed August 15, 1899. Serial No. 727,290. (No model.)

To all 'whom t may concern.- of which the pin d is of cylindrical form and Be it known that we, HANS ALFRED VON is adapted to turn within a socket fformed KBETSCHMAR and JOHN VOLLMER, citizens of within the head l), so that the telescope can the German Empire, residing at Essen, Gerbe swiveled or adjusted horizont-ally or-lat- 55 5 many, have invented certain new and useful erally about its axis, while the pin e is of rec Improvements in Telescope Attachments for tangular cross-'section and forms the connec- Guns, of which the followingis aspeciication. tion between thetelescopc and the adjusting This invention refers to atelescope attachmechanism for the same. This adjusting ment for guns, its object being to arrange' the mechanism consists ot=a hollow spindle t' and 6o xo connection between the telescope and the gun a nut h. 'The spindr'e t' is journaled at both in such a manner that -the parts serving for ends within the head b and is held in its pothe lateral adjustment of the telescope are sition by anut s, having an interposed springprotected in the best possible manner against washer t. The said spindle is adapted to be the action of ring and that wear of the mov- .turned by a usual knob or handle l. The 65 t 5 able or adjusting parts is prevented to the collar p of the spindle is providedwith gradgreatest possible extent. `By this means ,acnations or marks il, for the purpose of read- .vcuraey of adjustment is permanently insured. ing off the angle of. turning with respect to a Furthermore, an arrangement is made' which fixed index-mark q' on the head l). For the facilitates the readings of the lateral direction purpose of reading od full turns the-spindle@ 7o 2o of the telescope. is provided with an internal thread engaged by The invention will be best understood by ref a threaded hollow spindle m. A guide-bolt o erence to the annexed drawings, in whichof square or other polygonal lcross-section is Figure l represents a side view of theupheld against turning by the cover n surroundper part of the telescope attachment. Fig. 2 ingthenut s,a.nd saidbolt projects through the 75 25 is a longitudinal vertical section or Fig. 1, the hollow spindle i and through a corresponding ltelescope being shown in elevation. Fig 3 is a hole in the `end ofthe hollow spindle fm and cross-section on the line 3 3, Fig. 2. Fig. l is prevents tu'rning of the spindle m. In view of a horizontal section on the line 4 4, Fig.2,with this construction it follows that when the spinthe several parts of the telescope in the cendie ris turned a longitudinal displacement ot ,8o 3o trai position. Figs. 5 and 6 are horizontal secthe spindlem on the bolt o is edected. The extions, partly in elevation, on substantially the tent or magnitude ofthis displacement can be samerline as Fig. 4, but illustrating diierent read od on the divisions'or graduations o on angular positions of the telescope. the cylindricalsurface of the spindle m exte- Similar letters of reference designate correrior to the casing. The annular surface w of 8 5 55 sponding parts throughout the several views the knob or handle Z serves as an index for of the drawings. such reading. For conveniencethe gradua- Referring tc the drawings, the letter d destion is so made as to indicate full turns or revignates the supporting -bar, adjustably seolutions of the spindle t. The nut .h of the cured to or connected with the gun-barrel'in spindle 11 is guided in a straight line by abolt 9o 4o a usual manner. It .of substantially rectangular or like crossb is the box-shaped head of the supportingsection, which said bolt also takes up the imrod a, which carries the telescope y and is pulse due to tiring, so as to relieve the fine provided with or contains the mechanism for threads of the spindle i and nut 7L. For fur.- eecting the lateral adjustment of the telether relieving the spindle and nut some slight 95 45 scope and for reading olf. The telescope y changes may be made in the detail, -such as is placed within a protecting-casing c, which the arrangement of a second guide-bolt on is provided with rear and front sights for apthe side of the nut h facing the pin d. For proximate adjustment vertically and laterally transmitting the rectilinear motion ofthe nut or horizontally and with a dat foot r, which h to the pin e, which is guided in the arc of a me 5o covers the open top of the head b. Said cascircle, a bush gis pivoted within a cylindrical ing is also provided with two pins d and e, bearing formed in the nut h, and said bush is provided with a sletV ,two faces of the placement pin e parallel 'to the longitu telescope in thedirection of thelongil dinal axis of the While movement tuditla'l 'axis of the telescope isperniitted in view of the slot being longer thanfthe 'width of the :pin e in that direction. The slot :c permits the pin e to movel in the are of a circle within certain limits.

pin e, sucient lateral play 'being allowed, but vertical play being prevented by the bolt fitting against the topandhottom of saidopem ing, ,thus forminga firm guide, by means of which'the impulse due to recoil is transmitted to the head'h. In Figs.' e, 5, and 6 the ndr-mal or central position of the line ,C D, and the extreme positions central. position are designated oy the -linesA B in Figs'. yaud 6, respectively.

YThe telescope is operated as follows: In the l dlee ca nsesa displacementof the spindle m in 'the direction of its axis. The maximum angular positions of the telescope lto the right or left are indicated,- respectively, inl Figs. 5 and 6 by the lines A B', and the parts f or such adjustment are shown in the corresponding positions. By so selecting the pitch of the thread 'on the spindlefi that .one revolution of corresponds'to triangular change thespindle of one degree of 'the' telescope the' axialv disolfthe spindle lm will likewise correspond to 'an angular changent one degree. By forming thegraduations on the collar -p of the spindle t andonthe'spndle m, to corf respond the entire number o'd'egrees can be read 0E from 'thegraduationson the spindlem and fractions thereof; from the graduations on the spindle z'. lWhen the telescope is in its normal or central position, both graduations mnst of courseindicate zero.

' W'hat is claimed asln'ew is`,

ving an adjustable supporta ahead attached to or. forming parl' of' provided with -twopins about one of which within which the.

are firmly guided,

The bolt lo (previously:

referred to) passes through an opening in the v said telescope can 'turn telescope is designatedby the'y of the axis 'of thecelescope tothe yright and 'left oi'fthe During this displace'-4 turned'about the pin 0'. as

engagement with the Aour-hands in th l. A telescope attachmentfor gunsembody-y said support, a telescoper ing said nut at substantially right angles to the longitudinal axis of lthe telescope, and means for permitting said second pin to turn relatively to the-nut when said nut is moved rectilinearly, substantially. as described.

2? A telescopeattachment for guns embodying an adjustable support, a head attached to or forming part of said support, a telescope provided with two pins about one of which. laterally Withrespect tothe head, While the second su bstantially rectangular .cross-section, a nut through which said second 'pin passes provided with a bush having a `ecrresj'pon ding opening permitting movementoi the said pin inthe longitudinal direction. of the telescopenv and means .for 'moving said .nut at substan-v tially rightangles to the longitudinal axis cf the telescope, substantially as described.

3. A' telescope attachmentforguns en ibodying an adjustable support, a head attached to f .oriforining partof said support, a telescope 'provided with two pins about one of which said telescope can turn laterally with respect to thehead, al nut through which said second pin passes, a bolt passing through said second pintransversely and preventing vertical play of the same while permitting a turning movement,4 and means for moving said nut at 'snb stantially right angles :to the longitudinal axis of the scribed. A

4. Atelescope attachmentforguns'embodying au adjustable support, a head attached to pin is made oli' telescope, substantially as deor'forming part of said support, a telescope provided with two pins about oneof which said telescope can turn laterally with respect to the head, a nut through which the second pin passes, a threaded spindle t' engaging the said nut for moving the same rectilinearly and provided Withyan adjusting knob Orhandle, a second spindle m placed in threaded' first spindle and provided on its outer endv with graduations adapted te indicate thel full turns in conjunction with the knobfor handleof the first spindle, means-for preventing turning of the, second spindle, and grad nations placed on the knob orhandle of the 'first spindle for indicating in conjunction with a stationary mark or index the fractionary turn, substantially as described. v

- In testimony whereof we have hereunto set presence of two subscribing witnesses.

HANS ALFRED VON KRETSCHMAR. JOHN VOLLMER.

Wits esses WM. Ess'nnwnng GEO. P. Partir.

l IOO IIO 

